An analysis of the house by WBP Property Group revealed if it sold at the lower end of the anticipated sales range at auction on December 14, Ms Gillard would pocket as much as $500,000 above her initial purchase price of $140,000.

WBP director Greville Pabst said many factors influenced property value, and a celebrity association could have an “intangible effect on the sale price”.

“The former status and high profile of the owner is likely to lend positive influence to the property,” Mr Pabst said